1*4882a593Smuzhiyunconfig RDMA_SIW 2*4882a593Smuzhiyun tristate "Software RDMA over TCP/IP (iWARP) driver" 3*4882a593Smuzhiyun depends on INET && INFINIBAND && LIBCRC32C 4*4882a593Smuzhiyun depends on INFINIBAND_VIRT_DMA 5*4882a593Smuzhiyun help 6*4882a593Smuzhiyun This driver implements the iWARP RDMA transport over 7*4882a593Smuzhiyun the Linux TCP/IP network stack. It enables a system with a 8*4882a593Smuzhiyun standard Ethernet adapter to interoperate with a iWARP 9*4882a593Smuzhiyun adapter or with another system running the SIW driver. 10*4882a593Smuzhiyun (See also RXE which is a similar software driver for RoCE.) 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun The driver interfaces with the Linux RDMA stack and 13*4882a593Smuzhiyun implements both a kernel and user space RDMA verbs API. 14*4882a593Smuzhiyun The user space verbs API requires a support 15*4882a593Smuzhiyun library named libsiw which is loaded by the generic user 16*4882a593Smuzhiyun space verbs API, libibverbs. To implement RDMA over 17*4882a593Smuzhiyun TCP/IP, the driver further interfaces with the Linux 18*4882a593Smuzhiyun in-kernel TCP socket layer. 19